CVE-2021-31786

The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host, allowing attackers to trigger a disconnection and deadlock of the device by connecting with a forged BDAddress that matches the original connected host.

CVSS v3 6.5 MEDIUM
CVSS v2.0 6.1 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.1^/10

CVSS v2.0 : MEDIUM

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 6.5 / Impact : 6.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://dl.packetstormsecurity.net/papers/general/braktooth.pdf	Technical Description Third Party Advisory
https://launchstudio.bluetooth.com/ListingDetails/76427	Third Party Advisory
https://www.actions-semi.com/index.php?id=3581&siteId=4	Broken Link Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-09-07 07:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-31786

Mitre link : CVE-2021-31786

CVE.ORG link : CVE-2021-31786

JSON object : View

Products Affected

actions-semi

ats2815
ats2819t
ats2819p
ats2819_firmware
ats2819t_firmware
ats2815_firmware
ats2819
ats2819s_firmware
ats2819s
ats2819p_firmware

CWE

CWE-667

Improper Locking

{"id": "CVE-2021-31786", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.1, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.5, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2021-09-07T07:15:07.190", "references": [{"url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://launchstudio.bluetooth.com/ListingDetails/76427", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.actions-semi.com/index.php?id=3581&siteId=4", "tags": ["Broken Link", "Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "The Bluetooth Classic Audio implementation on Actions ATS2815 and ATS2819 devices does not properly handle a connection attempt from a host with the same BDAddress as the current connected BT host, allowing attackers to trigger a disconnection and deadlock of the device by connecting with a forged BDAddress that matches the original connected host."}, {"lang": "es", "value": "Una implementaci\u00f3n de Bluetooth Classic Audio en los dispositivos Actions ATS2815 y ATS2819, no maneja apropiadamente un intento de conexi\u00f3n desde un host con la misma direcci\u00f3n BDAddress que el host BT conectado en ese momento, permitiendo a atacantes desencadenar una desconexi\u00f3n y un bloqueo del dispositivo al conectarse con una direcci\u00f3n BDAddress falsificada que coincide con el host conectado original"}], "lastModified": "2022-07-12T17:42:04.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:actions-semi:ats2819p_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B034D11B-2F14-4283-8E99-27A9D7381CCE"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:actions-semi:ats2819p:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A4590A4D-CA4A-467B-9A0C-DDBAF32576D4"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:actions-semi:ats2815_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F959F1E4-A733-4454-8FC0-4A567946E582"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:actions-semi:ats2815:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "23646581-74EE-4C65-8BC8-D248C9A481F8"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:actions-semi:ats2819_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9293F654-73A6-4307-9610-91CFCB3B896D"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:actions-semi:ats2819:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1E76B147-A1D1-4160-B87D-31DD5F9DFF1B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:actions-semi:ats2819s_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4935084A-87E2-4041-8108-37407D888798"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:actions-semi:ats2819s:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6F918DD8-1070-44F5-A167-1D151430A89A"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:actions-semi:ats2819t_firmware:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7243C2D0-67F2-4EC1-8A52-7540C3117293"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:actions-semi:ats2819t:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "36CB59B4-95EB-487C-86EB-E8657D1C2286"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}